Over the past year I have lost 60lbs. Apps on my smartphone were absolutely crucial for this. They kept me accountable and on track.
Personally I use myfitnesspal and workout trainer (obvs). I've recently added a app that tracks my water intake, I can't even tell you how good I feel actually being fully hydrated every day.
Just wondering what other users have had success with.
Max Capacity Trainer
Accupedo (pace counter, mostly use it at work)
My diet diary
And Zumba (Loving zumba for Ps3)
17 pounds 4 weeks
Pull Ups Pro
My Run keeper
My fitness pal